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Solenoids repair A750 A760 A761 A960 AB60 (Lexus GS470 LX470 GS300 / Toyota Land Cruiser Tundra 4-Runner / Suzuki Grand Vitara / Hyundai Genesis)

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  • Brand: MAKTRANS-VB
  • Product Code: A960SOLREP
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  • Weight (kg): 0.2
  • Availability: 1000
$40.00
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Ukraine 1000 pcs. $40.00
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A750E / F (marking F stands for four-wheel drive) is a popular 5-speed automatic transmission manufactured by Toyota, since 2002 it began to be mounted on the rear and all-wheel drive Lexus GS470 / LX470 and Toyota HILUX / Land Cruiser / 4 Runner with engines from 2.5 to 4.7 liters. The box was not accidentally massively installed on expensive Lexus cars, at the time of its appearance it was an advanced and reliable 5-speed automatic transmission that without any problems maintained 150-200 thousand km. run without the need for repair.

A little later, in 2005, the A760E / H and A761E / H transmissions appeared. These are already 6-speed units, however they are designed on the basis of the A750 and are structurally very similar. The A760 series became very popular and in addition to Toyota / Lexus and other manufacturers began to install these boxes, the A760 can be found on Hyundai Genesis, Jeep Liberty and even on Renault Master.

The next round of evolution of Toyota's 6 speed boxes is the A960E and AB60E. A960E is a lightweight version of the A760E and is designed to work in tandem with 2.5-3 liter engines, the torque limit is 300 Nm. Installed on Lexus IS250, IS300, GS300 and Toyota Mark X. AB60E is a reinforced version of the box, can be found on Lexus LX570 and Toyota Tundra, Sequoia and Land Cruiser with powerful V8 5.7L engines

All these transmissions have a lot in common, because they are designed on the same base on a modular basis, and many details, such as solenoids, are the same and interchangeable, so the repair of the solenoids that we show in this article is relevant for all boxes in this series.

We have to repair an A960E block , let’s show the repair of solenoids using its example. The A960E has 9 solenoids, 4 complex PWM solenoids and 5 ON / OFF's. The latter are not of much interest to us, they usually do not break, it is enough to simply check for resistance and rinse them. Let's consider linear solenoids in more detail:

 

  1.     Solenoids SL1 and SL2, interchangeable
  2.     Solenoid SLT (regulates the main pressure)
  3.     SLU solenoid (responsible for torque converter lockout)


The malfunction of the solenoids can be determined by the following symptoms:

  •  
  •     The solenoid plunger is stuck in the open position - the oil pressure is above normal and there may be thumps and jerks when shifting gears. If the defect is not eliminated, shock loads can damage the mechanical part of the automatic transmission.
  •     The solenoid plunger is stuck in the closed position - a sufficient amount of oil does not get into the clutch pack and slippage occurs when switching. Slippage leads to overheating, which can cause friction plates to burn.
  •     The wearout in the channels of the hydraulic plate can cause any of the above symptoms, for example, the wear of the torque converter lock-up plunger will lead to the   torque converter lock up  either with a shock, or vice versa, not completely, in this case the valve body needs repair with installation of oversized valves.


 

 


A960E solenoid layout

 

Checking on the stand


Let's start with the solenoid SL1, which provides a gear shift from 4 to 5. Below is a table by which you can determine what solenoid is responsible for.

 

 

 

To check the solenoids, we use a special stand - it allows testing the solenoids for operability in different temperature conditions. This is very important in the case of Toyota PWM solenoids - almost all show good results on cold, but on hot - problems begin.


                                                                              Stand for valve body checking

 

 

Solenoid installing and starting the testing program.

 

We look at the graph, such steps indicate that the plunger and core are stuck, the cause is usually dirty oil .

 

Disassembly


To disassemble the solenoid, we use a tool of our own production:

 

 

Video instruction on how to use the tool

 

 

We are immediately smoothing out the solenoid housing using the press and the mandrels included in the tool kit

 

Washing

 

Assembly

 

Solenoid housing closure

 

Re-testing at the stand

 

Performance restored, perfect schedule.

 

Now the solenoid SLT. We are looking at the chart.

The verdict is unambiguous, it needs to be repaired. SLU / SLT solenoids A960E are repairable, the repair will consist in disassembling, cleaning the solenoid from dirt and replacing the guide sleeves.


                                                          Installing the solenoid in the mandrel and opening

 

First of all, we are interested in the core of the solenoid, 2 guide bushings are pressed into it. The inner coating of the bushings is polytetrafluoroethylene, it erases with time and the plunger starts to wedge during operation.

 

We remove the bushings and install new ones

 

The solenoid is washed, collected and closed on the press

 

Now we will tell you why replacing the bushings is not possible at "home" in the garage - there is an adjusting screw in the solenoid nose, it is not enough just to tighten it. Using the stand and adjusting the screw, each solenoid is adjusted until its characteristics match the new solenoid.

Repairing a single solenoid costs $ 40 and we give a 1 year warranty without a mileage limit on the repair units or assemblies.

Tools and consumables used to repair solenoids A750 A760 A761 A960 AB60:

 

Our details for sending your part to repair:

Recipient: Dmitry Rabizo; tel. +38 050 5272236

Nova Pochta (New Mail)- Kyiv, department 247

Gunsel - Kyiv-1, str. Terekhina 8

Delivery address - Kyiv, Stepan Bandera Avenue 21B

Any questions? Repair department will advise on any technical issue:

Repair department Kyiv Railway highway 4

  • +38 050 5272236 
  • +38 096 8330485 
  • +38 063 1156120
  • Dmytro

Repair Department Kiev - 21B Stepan Bandera Avenue

+38 096 8965155

+38 066 2105567

+38 099 0415901

Repair department Lviv

  • +38 098 2624085
  • +38 097 7529920
  • Dmytro

 

Repair department Odessa

  • +38 098 1103761 
  • +38 050 2628449
  • +38 067 4692328

 

Repair department Kharkiv

  • +38 096 8122122
  • +38 093 1410041

 

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Questions - Answers (1)
Jay pagan

So the sl1 and sl2 are the same solenoids?No difference they are interchangeable ?

MAKTRANS MAKTRANS

Yes sl1 sl2 are the same